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Pollen stainability was found to be more or less 115 ZAMAN, W.; BISWAS, S.K.;
similar in long petioled form (LPs) and short HELALI, M.O.H.; IBRAHIM, M. (Fruits
petioled form (SPs) of water hyacinth but the size and Food Processing and Preservation Research
of both oval and round pollen grains was bigger in Division, BCSIR Laboratories, Rajshahi) &
SPs in comparison to the LPs, the difference HASSAN, P. (Institute of Biological Sciences,
being statistically significant. In seed Rajshahi University, Rajshahi). PHYSICO-
development, significant differences were CHEMICAL COMPOSITION OF FOUR
observed between LPs and SPs at 1% level only PAPAYA VARIETIES GROWN AT
in respect of their average number of capsules and RAJSHAHI. J.Bio-Sci., 2006, 14, 83-86.
seeds in case of natural pollination. However, in
case of artificial self and cross-pollinated flowers, A study was carried out on four papaya varieties
significant differences were observed between namely, Bombai, Deshi, Shahi (Yellow) and
LPs and SPs at 1% level in respect of their Shahi (Red) for their physico-chemical
average number of capsules, seed-bearing composition grown at Rajshahi. The results
capsules and also number of seeds per capsule. showed that maximum fruit weight was observed
in Bombai and lowest in Shahi (Red). It was also
114 RAHMAN, M.S. (Dept. of Microbiology, found that recovery of pulp, TSS and total sugar
Chittagong University, Chittagong). were 80.46-87.41 %, 9.0-13.0% and 6.96-10.50%
Antimicrobial activity of various crude extracts respectively.
from flower of Vernonia cinerea (Roxb.) Lees.
Bang. J. Life Sci., 2008, 20 (2), 111-116. 581. 48 : BOTANY : FLOWERS,
Crude extracts of Petroleum ether, chloroform, FRUITS & SEEDS
ethyl acetate and ethyl alcohol of Vernonia
cinerea flowers were studied for their 116 ADEYEYE, E.I. (Chemistry Dept., Ado-
antimicrobial activities against eleven human Ekiti University, Nigeria) & AGESIN, O.O.
pathogenic bacteria [Shigella dysenteriae, S. (Home Economics Dept., College of Education,
sonnei, Salmonella typhi, S. paratyphi, Bacillus Nigeria). Dehulling the African Yam Bean
subtilis, B megaterium, B. cereus, (Sphenostylis stenocarpa Hochst. ex A. Rich)
Staphylococcus aureus, Pseudomonas Seeds : Any Nutritional Importance? Note I. Bang,
aeruginosa Escherichia coli and Vibrio J. Sci. Ind. Res., 2007, 42 (2), 163-174.
cholerae] and four human pathogenic fungi
[Aspergillus niger, A. ustus and Candida The flour from three colour varieties of dehulled
albicans] using disc diffusion and poisoned food seeds and hull of the African Yam bean (AYB)
method resphclvely. Elhyl alcohol and ethyl (Sphenostylis stenocarpa) were analysed for
acetate extract exhibited good antibacterial and proximate composition, ash solubility and
antifungal activity against all the pathogens alkalinity and the mineral composition. The
tested herein. The ethyl acetate extracts dehulled seeds were labelled A 2, B 2 and C 2 while
exhibited the largest zone of inhibition (18 mm the corresponding hulls were labelled A 3, B 3 and
in diameter with 2000 µg/disc extract) against E. C 3 respectively. Both protein and carbohydrate
coli. The highest inhibition of fungal radial were highly concentrated in the dehulled samples
mycelial growth (50.0% with 100 µg extract/ml while crude fat and crude fibre were more
medium) was recorded against A. ustus with concentrated in the hulls. The ash was more than
ethyl alcohol extract. Minimum inhibitory 90 % soluble in dilute mineral acid and significant
concentrations (MICs) were determined by broth correlation existed (0.99) in the ash solubility
macrodilution technique. The ethyl acetate characteristics. With the exception of phosphorus
extracts exhibited the lowest MIC (750 (µg/ml) and potassium, other minerals determined (Cu, Zn,
against E. coli. However, for fungi, the lowest Co, Na, Ca, Mg, Mn, Fe) were found to be more
MIC was 500 µg/ml against A. ustus with crude concentrated in the hulls than in dehulled samples
extract of ethyl acetate and ethanol. and correlation coefficients were significantly high
among the samples with values ranging between
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